Author: ld Illani IbrahimPublisher:
ISBN:
Category :
Languages : en
Pages : 43
Book Description
Neutron Detection of Simple Water Model Using Monte Carlo Method
Monte-Carlo Simulations of Neutron Detector Performance
Author: Svyatoslav Mihailovich TkachenkoPublisher:
ISBN:
Category :
Languages : en
Pages : 190
Book Description
A Monte Carlo Computation Being Made for Neutron Attenuation in Water
Author: M. Lewis NelsonPublisher:
ISBN:
Category : Monte Carlo method
Languages : en
Pages : 16
Book Description
A Monte Carlo Simulation of a Fast Neutron Detector
Author: Gerald A. FaloPublisher:
ISBN:
Category : Neutron counters
Languages : en
Pages : 234
Book Description
Monte Carlo Simulations of Neutron Well-logging in Granite and Sand to Detect Water and Trichloroethane (TCA).
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 46
Book Description
The Monte Carlo code MCNP is used in simulations of neutron well logging in granite to detect water and TCA (C2H3Cl3), a common ground contaminant, in fractures of 1 cm and 1 mm thickness at various distances and orientations. Also simulated is neutron well logging in wet sand to detect TCA and lead (Pb) at various uniform concentrations. The 3H(d, n) (DT) and2H(d, n) (DD) neutron producing reactions are used in the simulations to assess the relative performance of each. Simulations are also performed to determine the efficiency of several detector materials such as CdZnTe, Ge and NaI as a function of photon energy. Results indicate that, by examining the signal from the 6.11 MeV gamma from the thermal neutron capture of Cl in TCA, trace amounts (few ppm) are detectable in saline free media. Water and TCA filled fractures are also detectable. These results are summarized in Tables 7--21. Motivation for this work is based on the need for detection of trace environmental pollutants as well as possible fracture characterization of geologic media.
Monte Carlo Simulation of Neutron Detectors
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Neutron detectors are simulated using Monte Carlo methods in order to gain insight into how they work and optimize their performance. Simulated results for a Micromegas neutron beam monitor using a custom computer code are compared with published experimental data to verify the accuracy of the simulation. Different designs (e.g. neutron converter material, gas chamber width, gas pressure) are tested to assess their impact on detector performance. It is determined that a 10B converter foil and 1 mm drift gap width work best for a neutron beam monitor. The Micromegas neutron beam monitor neutronics are evaluated using the computer code MCNP. An optimized set of design criteria are determined that minimize neutron scattering probability in the device. In a best-case scenario, the thermal neutron scattering probability in the detector is 1.1*10−3. Lastly, composite neutron scintillators consisting of fluorescent dopant particles in a lithiated matrix material are simulated using a custom Monte Carlo code. The effects of design parameters such as dopant particle size, dopant volumetric concentration, and dopant and matrix material densities on scintillator characteristics are quantified. For ZnS:Ag particles in a lithiated glass matrix, it is found that dopant particle radii of 1 micron or less result in approximately Gaussian-shaped pulse height spectra and dopant particle radii of 5 microns or less result in practically all neutron absorption events producing scintillation light emission. Self-absorption of scintillation light is not treated in the simulation. Both the Micromegas and composite neutron scintillator simulations use the TRIM code as a heavy-charged particle transport engine.
A Monte Carlo Calculation of the Neutron Flux from a Monoenergetic Point Source in Air
Author: C. R. MehlPublisher:
ISBN:
Category : Monte Carlo method
Languages : en
Pages : 138
Book Description
Results of a calculation of neutron transport through air are presented. Neutron flux and angular distributions are presented as functions of energy and radial distance from the source.
Particle Physics Reference Library
Author: Christian W. FabjanPublisher: Springer Nature
ISBN: 3030353184
Category : Elementary particles (Physics).
Languages : en
Pages : 1083
Book Description
This second open access volume of the handbook series deals with detectors, large experimental facilities and data handling, both for accelerator and non-accelerator based experiments. It also covers applications in medicine and life sciences. A joint CERN-Springer initiative, the "Particle Physics Reference Library" provides revised and updated contributions based on previously published material in the well-known Landolt-Boernstein series on particle physics, accelerators and detectors (volumes 21A, B1,B2,C), which took stock of the field approximately one decade ago. Central to this new initiative is publication under full open access
A Monte Carlo Method for Determining the Efficiency of a Spherical "dish" Arrangement of Neutron Detectors
Author: Joseph Fleck (Jr.)Publisher:
ISBN:
Category : Monte Carlo method
Languages : en
Pages : 26
Book Description
The Monte Carlo Method
Author: Paul Blackmer MorganPublisher:
ISBN:
Category :
Languages : en
Pages : 110
Book Description